JavaScript)이메일 정규표현식 구현하기

	  const emailRex = /^([\w\.\_\-])*[a-zA-Z0-9]+([\w\.\_\-])*([a-zA-Z0-9])+([\w\.\_\-])+@([a-zA-Z0-9]+\.)+[a-zA-Z0-9]{2,8}$/;
      const emailValue = document.querySelector("#input-email-span").textContent;

      if(self.emailValue != null && self.emailValue.length > 1){
        if(!emailRex.test(self.emailValue)){
          self.emailCheck = false;
          emailSpan.style.color = 'red'
          emailSpan.textContent = "올바른 이메일을 입력해주세요."


        }
      }
      
      //정규표현식.test(str)